Printed and published on behalf of the author for private circulation by W.E. Harrison, Ipswich, nd (c 1923 - a paper published in 1922 is described as "Recent"). Cloth spine, paper covered boards. Black lettering to front board, no dustwrapper. 11.5ins x 9ins, 39pp plus 6pp plates (one coloured). The plates were illustrated by E.T. Lingwood & his facsimile signature is at the base of each plate. Charts and figures within the text. Printed on good quality paper stock. Boards a bit grubby and marked. Contents VG, exterior G+. An unusual and fairly scarce work.